MISSION AND PHYSICS DESIGN OF THE TOKAMAK PHYSICS EXPERIMENT

Improvements in the confinement, stability limits, current-drive effic iency and divertor performance, combined with steady-state operation, can lead to a more economical tokamak fusion reactor than one based on the present physics data base. The Tokamak Physics Experiment (TPX) i s planned to extend the recent advances in these areas, achieved in pu lsed tokamaks, to the steady-state regime. In so doing, it will develo p a data base needed for the design of an economically attractive toka mak reactor.